A Nonrecursive List Compacting Algorithm. - Chris J. Cheney (Commun. ACM, 1970)

Rainbow: An integrated CAD system. - Heinz U. Lemke; Chris J. Cheney; M. Etherton; Neil E. Wiseman (DAC, 1971)

RAINBOW - A Multi-Purpose CAD System. - Neil E. Wiseman; Chris J. Cheney; M. Etherton; J. O. Hiles; Heinz U. Lemke (Softw. Pract. Exp., 1972)